Welding workbench for surrounding frame of magnesium alloy hydrogen supply system frame

Abstract

The utility model discloses a welding table for a peripheral frame of a magnesium alloy hydrogen supply system framework, which belongs to the technical field of welding auxiliary equipment and comprises a welding lifting mechanism, a welding table top, a limiting plate and a positioning device. The welding table top is fixed to the top of the welding lifting mechanism, and the limiting plate is movably arranged at the top of the welding table top and used for positioning stand columns of a surrounding frame of a magnesium alloy hydrogen supply system frame. The positioning device comprises a sliding block, a locking structure and a scale positioning plate; the sliding block is in sliding connection with the limiting plate, the locking structure is connected with the sliding block and used for positioning the sliding block, the scale positioning plate is connected with the upper pressing block, and the scale positioning plate is used for positioning a peripheral frame cross beam of the magnesium alloy hydrogen supply system frame; according to the welding workbench, the problem that the magnesium alloy hydrogen supply system frame surrounding frame is difficult to position is solved, and the welding quality and the welding efficiency of the magnesium alloy hydrogen supply system frame surrounding frame are improved.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary equipment technology, specifically a welding workbench for the frame surrounding a magnesium alloy hydrogen supply system. Background Technology

[0002] The hydrogen supply system frame is used to mount hydrogen cylinders on hydrogen-powered heavy-duty trucks. Due to the large size, weight, and number of hydrogen cylinders, and the multi-directional forces they withstand during road transport, the strength of the hydrogen supply system frame, especially its welding strength and quality, is extremely important. Welding problems can pose serious safety hazards. Currently, most hydrogen supply system frames on the market are made of steel, which is very heavy. To achieve better weight reduction, a new type of magnesium alloy hydrogen supply system frame has been developed. This frame not only achieves lightweighting but also meets practical performance requirements. The magnesium alloy hydrogen supply system frame is more than 300 kg lighter than the same model of traditional steel hydrogen supply system frame. A 20% reduction in vehicle weight can save approximately 10% of fuel consumption while effectively increasing load capacity.

[0003] The magnesium alloy hydrogen supply system frame consists of left and right peripheral frames and a central main load-bearing frame, with the central main load-bearing frame connected to the left and right peripheral frames by bolts. The left and right peripheral frames are welded from columns, beams, and longitudinal beams, requiring extensive welding with extremely high requirements for weld quality and positional accuracy. Currently, in actual production, the peripheral frames of the magnesium alloy hydrogen supply system are mainly welded manually. Due to the large size of the peripheral frames, there are numerous welding positions. During welding operations, to improve welding quality, welders often need to adjust various welding angles and postures, selecting appropriate angles for welding. Sometimes, the peripheral frames need to be raised for level or upward welding, and sometimes lowered for downward welding. However, most welding workbenches currently cannot flexibly raise and lower to meet the welding operation requirements. Moreover, in actual welding operations, manual marking with rulers for positioning and then welding and fixing each element individually is extremely inefficient and prone to inaccurate positioning. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a welding workbench that improves the welding quality and efficiency of the frame surrounding the magnesium alloy hydrogen supply system.

[0005] This utility model is achieved through the following technical solution:

[0006] A welding workbench for the perimeter frame of a magnesium alloy hydrogen supply system includes a welding lifting mechanism, a welding table surface, a limiting plate, and a positioning device.

[0007] The welding table is fixed to the top of the welding lifting mechanism, and the limiting plate is movably set on the top of the welding table for positioning the columns of the frame around the magnesium alloy hydrogen supply system.

[0008] The positioning device includes a slider, a locking structure, and a graduated positioning plate;

[0009] The slider is slidably connected to the limiting plate, the locking structure is connected to the slider for positioning the slider, the scale positioning plate is connected to the slider and is used to position the crossbeams of the surrounding frame of the magnesium alloy hydrogen supply system frame.

[0010] Preferably, the welding lifting mechanism includes a base, a scissor-type lifting mechanism, and a hydraulic drive device;

[0011] The scissor lift mechanism is mounted on the base and connected to the hydraulic drive device, which controls the lifting state of the scissor lift mechanism. The welding platform is located on the top of the scissor lift mechanism.

[0012] Preferably, a positioning plate is provided at the end of the limiting plate, and the positioning plate is set at a right angle to the limiting plate. The positioning plate is used to position the end of the column.

[0013] Preferably, the welding table surface is provided with multiple connection holes, which are arranged in a row, and the connection holes are fixed to the limiting plate by locking pins.

[0014] Preferably, the top of the limiting plate is provided with a sliding groove, the slider is disposed in the sliding groove, the top of the slider is provided with a handle, the upper end of the handle extends out of the sliding groove, and a locking structure is installed on the handle. The locking structure is used to apply a pulling force to the slider so that the slider and the sliding groove are interlocked.

[0015] Preferably, the locking structure includes a locking device and an upper pressure block;

[0016] The locking device and the upper pressure block are sleeved on the handle, with the upper pressure block located on the top surface of the limiting plate. The locking device and the handle are connected by threads.

[0017] Preferably, a scale is provided on the top of the limiting plate.

[0018] Preferably, the scale positioning plate is rotatably connected to the locking structure, the scale positioning plate is located on top of the limiting plate, and the scale positioning plate is perpendicular to the limiting plate.

[0019] Preferably, the top of the welding table is provided with multiple clamps for fixing the various components of the frame surrounding the magnesium alloy hydrogen supply system.

[0020] Preferably, there are two limiting plates, which are arranged in parallel and spaced apart.

[0021] Compared with the prior art, the present invention has the following beneficial technical effects:

[0022] This application discloses a welding workbench for the perimeter frame of a magnesium alloy hydrogen supply system. The welding table surface is fixed to a welding lifting mechanism, which controls the height of the welding table surface, allowing it to be flexibly raised and lowered according to welding needs. Welding operators can select appropriate positions and welding postures to perform welding, reducing the difficulty of welding operations and thus improving welding quality and efficiency. In addition, limiting plates are used to position the perimeter frame columns, and sliders and positioning plates are used to position the perimeter frame crossbeams and longitudinal beams. This effectively limits the welding positions of the perimeter frame columns and crossbeams, thereby effectively improving the accuracy of the welding position and work efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the welding workbench of this utility model;

[0025] Figure 2 This is a side view of the welding workbench of this utility model;

[0026] Figure 3 This utility model Figure 2 Enlarged view of a portion of point A in the middle;

[0027] Figure 4 This is a schematic diagram of the structure of the frame surrounding the magnesium alloy hydrogen supply system of this utility model;

[0028] In the diagram: 1. Welding platform lifting mechanism; 11. Base; 12. Second guide rail; 13. First support; 14. First support rod; 15. Second support rod; 16. First connecting rod; 17. Second connecting rod; 18. Rotating shaft; 19. Hydraulic rod; 20. Hydraulic oil pump; 21. First guide rail; 22. Second support; 2. Welding table; 23. Locking pin; 3. Limiting plate; 4. Measuring scale; 5. Slide groove; 6. Positioning device; 61. Handle; 62. Locking device; 63. Upper pressure block; 64. Scale positioning plate; 65. Slider; 7. Magnesium alloy hydrogen supply system frame surrounding frame; 71. Surrounding frame column; 72. Surrounding frame crossbeam; 73. Surrounding frame longitudinal beam; 8. First vertical clamping device; 9. Horizontal clamping device; 10. Second vertical clamping device. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0031] The hydrogen supply system frame includes a multi-layer main load-bearing intermediate frame and magnesium alloy hydrogen supply system frame surrounding frames set at both ends of the multi-layer main load-bearing intermediate frame. Each layer of the multi-layer main load-bearing intermediate frame is equipped with a hydrogen cylinder, and the hydrogen cylinder is placed horizontally in the partition of each layer. The two magnesium alloy hydrogen supply system frame surrounding frames are respectively set at both ends of the multi-layer main load-bearing intermediate frame and bolted together to form the entire hydrogen supply system frame.

[0032] See Figure 4 The figure is a structural diagram of the frame surrounding the magnesium alloy hydrogen supply system. The frame surrounding the magnesium alloy hydrogen supply system includes two columns 71, ten frame crossbeams 72, and five frame longitudinal beams 73. The columns are in the vertical position, which is the usage state of the frame surrounding the magnesium alloy hydrogen supply system.

[0033] Two uprights 71 are arranged in parallel intervals. Five surrounding frame longitudinal beams 73 are arranged between the surrounding frame longitudinal beams 72 and are parallel to each other. The two ends of the surrounding frame longitudinal beams 73 are welded to the surrounding frame longitudinal beams 72 respectively. Ten surrounding frame horizontal beams 72 are evenly arranged on the two uprights. One end of the surrounding frame horizontal beam 72 is welded to the node of the uprights 71 and the surrounding frame longitudinal beams 73, and the other end is used to connect to the end of the multi-layer main load-bearing intermediate frame.

[0034] To address the problems of difficult positioning and low welding efficiency of the frame surrounding a magnesium alloy hydrogen supply system, this application provides a welding workbench for the frame surrounding a magnesium alloy hydrogen supply system, including a welding lifting mechanism 1, a welding table 2, a limiting plate 3, a positioning device 6, and a clamping device.

[0035] The welding table is fixed to the top of the welding lifting mechanism, which is used to adjust the height of the welding table 2; the limiting plate 3 is movably set on the top of the welding table and is used to position the frame columns 71 around the magnesium alloy hydrogen supply system frame.

[0036] The positioning device 6 includes a slider 65, a locking structure, and a scale positioning plate 64. The slider is connected to the limiting plate 3 and can move along the length of the limiting plate 3. The locking structure is connected to the slider for positioning the slider. The scale positioning plate 64 is bolted to the upper pressure block 63 and is used to position the crossbeam 72 of the frame surrounding the magnesium alloy hydrogen supply system frame. The clamping device is connected to the welding table and is used to fix the various components of the frame surrounding the magnesium alloy hydrogen supply system frame.

[0037] The welding workbench of this application fixes the welding table surface to a welding lifting mechanism. The height of the welding table surface is controlled by the welding lifting mechanism, allowing welders to weld the components of the surrounding frame of the magnesium alloy hydrogen supply system in the most comfortable posture. This effectively improves welding quality and reduces the difficulty of welding operations. In addition, a limiting plate 3 is used to position the columns, and a slider and a scale positioning plate are used to position the horizontal beam 72 and the vertical beam 73 of the surrounding frame, improving the welding accuracy around the entire magnesium alloy hydrogen supply system frame. Furthermore, a clamping device is used to fix the components around the magnesium alloy hydrogen supply system frame after positioning, preventing the components from moving during the welding process and solving the problem of difficult positioning of the components. This improves the welding quality and welding efficiency of the surrounding frame of the magnesium alloy hydrogen supply system frame.

[0038] Example 1

[0039] See Figure 1-4 A welding workbench for a frame surrounding a magnesium alloy hydrogen supply system includes a welding lifting mechanism 1, a welding table surface 2, a limiting plate 3, a positioning device 6, and a clamping device.

[0040] The welding lifting mechanism 1 includes a base 11, a scissor lift mechanism, and a hydraulic drive device. The scissor lift mechanism is mounted on the base and connected to the hydraulic drive device, which is used to control the lifting state of the scissor lift mechanism.

[0041] The scissor lift mechanism includes a first guide rail 21, a first support 13, a first support rod 14, a second support rod 15, a second guide rail 12, and a second support 22.

[0042] Two first guide rails 21 are parallel and symmetrically distributed at one end of the bottom surface of the worktable and welded and fixed. Two second supports 22 are parallel and symmetrically distributed at the other end of the bottom surface of the worktable and welded and fixed. The first guide rails 21 are provided with sliding grooves, and the position of the sliding grooves is flush with the position of the holes on the second supports 22.

[0043] Two second guide rails 12 are parallel and symmetrically distributed on one end of the surface of the base 11 and welded and fixed. The first guide rail 21 and the second guide rail 12 are located at the same end. Two first supports 13 are parallel and symmetrically distributed on the other end of the surface of the base and welded and fixed. The position of the sliding groove on the second guide rail 12 is flush with the position of the hole on the first support 13. The second support 22 and the first support 13 are located at the same end.

[0044] Two first support rods 14 are distributed in parallel on both sides of the base 11. One end of the first support rod 14 is hinged to the first support 13, and the other end is slidably connected to the first guide rail 21. Two second support rods 15 are distributed in parallel on both sides of the base 11. One end of the second support rod 15 is slidably connected to the second guide rail 12, and the other end is hinged to the second support 22. The middle parts of the first support rods 14 and the second support rods 15 are connected by a pivot 18.

[0045] The hydraulic drive unit includes a hydraulic rod 19, a hydraulic oil pump 20, and a fixed structure.

[0046] The fixed structure includes a first connecting rod 16 and a second connecting rod 17. The first connecting rod 16 is horizontally arranged, and its two ends are respectively welded to two first support rods 14. The second connecting rod 17 is horizontally arranged, and its two ends are respectively welded to two second support rods 15. The first connecting rod 16 and the second connecting rod 17 are located at the same end of the scissor lift mechanism. The hydraulic rod 19 is arranged between the first connecting rod 16 and the second connecting rod 17, and its two ends are hinged to the connecting rods. The hydraulic oil pump 20 is fixed on the base 11 by bolts.

[0047] The workbench is provided with multiple connection holes arranged in a rectangular row. The connection holes are fixed to the limiting plate 3 by locking pins 23. The width of the limiting plate is adjusted by the connection holes so that the limiting plate can fix the columns of the frame 7 around the magnesium alloy hydrogen supply system frame of different specifications. That is, the distance between the two columns of the frame 7 around the magnesium alloy hydrogen supply system frame is different.

[0048] The end of the limiting plate 3 is provided with a positioning plate, and the positioning plates of the two limiting plates are located at the same end. The positioning plate is used to position the end of the column to improve the positioning efficiency of the column and prevent misalignment of the ends of the two columns. The limiting plate 3 and the positioning plate form an L-shaped structure. The two limiting plates 3 can be adjusted according to the distance between the two surrounding frame columns 71, so that the side walls of the surrounding frame columns 71 are tightly attached to the limiting plate 3 and the ends abut against the positioning plate, thereby limiting the position of the two surrounding frame columns 71.

[0049] The limiting plate 3 is provided with a positioning device 6, which is used to position the surrounding frame beam 72. The positioning device 6 includes a measuring scale 4 and a sliding positioning mechanism. There are two measuring scales 4 located on the long side of the limiting plate 3, which are used to control the position of the surrounding frame beam 72.

[0050] The sliding positioning mechanism includes a slide groove 5, a handle 61, a locking device 62, an upper pressure block 63, a scale positioning plate 64, and a slider 65.

[0051] The slide groove 5 is set on the top of the limiting plate 3 and is set along the length of the limiting plate 3. The slide groove 5 is a T-shaped groove. The slider 65 is set in the T-shaped groove. The lower end of the handle 61 is threaded. The lower end of the handle 61 passes through the locking device 62 and the upper pressure block 63 in sequence. The lower end of the handle 61 is welded to the slider 65. The scale positioning plate 64 is located on the measuring scale 4 and is screwed to the upper pressure block 63. It can rotate along the screw. When positioning the surrounding frame beam 72, the scale positioning plate 64 rotates to the side wall of the limiting plate. The surrounding frame beam 72 is set vertically and close to the scale positioning plate 64. The locking device 62 rotates to apply pressure to the upper pressure block 63 to fix the slider 65.

[0052] The welding table is equipped with clamps for fixing the column 71, the surrounding frame crossbeam 72 and the surrounding frame longitudinal beam 73. The clamps include a first vertical clamp 8, a horizontal clamp 9 and a second vertical clamp 10.

[0053] The two peripheral frame columns 71 each abut one end against the short side of the limiting plate 3, and their sides are tightly fitted against the long side of the limiting plate 3, and are fixed to the welding table 2 by the first vertical clamping device 8; the peripheral frame crossbeams 72 are welded to the inner side of the peripheral frame columns 71 and are fixed to the welding table 2 by the horizontal clamping device 9; the peripheral frame longitudinal beams 73 are welded between the front and rear peripheral frame crossbeams 72 and are fixed to the welding table 2 by the second vertical clamping device 10.

[0054] The working principle of the welding workbench in Example 1 is explained below:

[0055] Step 1: Start the hydraulic oil pump 20 through the control panel to extend the hydraulic rod 19. The hydraulic rod 19 pushes the second connecting rod 17 upward, thereby causing the second support plate 15 to slide along the second guide rail 12 to a suitable position. The welding table 2 is hinged to the second support rod 15. As the second support plate 15 slides, the welding table 2 rises. Adjust the position of the welding table 2 according to the height required by the welding worker.

[0056] Step 2: Place a limiting plate 3 on the welding table 2 and then fix the position of the limiting plate with locking pin 23; determine the position of another limiting plate 3 according to the distance between the two surrounding frame columns 71 of the hydrogen supply system frame 7 and fix it with locking pin 23.

[0057] Step 3: Place one end of each of the two peripheral frame pillars 71 tightly against the positioning plate of the limiting plate 3, with the sidewalls tightly against the long side of the limiting plate 3; then select eight first vertical clamps 8 according to the length of the peripheral frame pillars, and use locking pins 23 to fix them on the welding table 2; then pull the wrench of the first vertical clamps 8 to fix the two peripheral frame pillars 71 on the welding table 2 to prevent them from moving.

[0058] Step 4: Based on the position of the surrounding frame beam 72 on the surrounding frame column 71, slide the slider 65 in the positioning device 6 on the slide groove 5 to adjust it to a suitable position on the measuring scale 4. Then, rotate the threads of the handle 61 and the locking device 61 to rivet them together and press the upper pressure block 63 onto the limiting plate 3. Then, rotate the scale positioning plate 64 to accurately position the welding position of the surrounding frame beam 72 on the surrounding frame column 71.

[0059] Step 5: Place all the surrounding frame beams 72 at the positions positioned on the limiting plate 3 according to the positioning device 6, and then use the horizontal clamping device 9 to press and fix the surrounding frame beams 72. Finally, weld and fix all the surrounding frame beams 72 to the surrounding frame columns 71.

[0060] Step 6: Place the longitudinal beams 73 of the surrounding frame between the two symmetrical cross beams 72 of the surrounding frame, and then use the second vertical clamping device 10 to fix all the longitudinal beams 73 of the surrounding frame. After fixing, weld all the longitudinal beams 73 of the surrounding frame onto the cross beams 72 of the surrounding frame until all positions are welded.

[0061] Example 2

[0062] A welding workbench for the frame surrounding a magnesium alloy hydrogen supply system differs from Embodiment 1 in the installation and driving method of the hydraulic drive device; the rest of the structure is the same and will not be described in detail.

[0063] The hydraulic drive device includes a hydraulic rod 19 and a hydraulic oil pump 20.

[0064] The hydraulic rod 19 is connected to the hydraulic oil pump and is mounted on the base 11. The lower ends of the two second support rods 15 are connected to the crossbeam, and the piston end of the hydraulic rod 19 is connected to the second support rods 15 through the crossbeam. The hydraulic rod 19 is a hydraulic cylinder.

[0065] The above content is only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed in this utility model shall fall within the scope of protection of the claims of this utility model.

Claims

1. A welding workbench for the perimeter frame of a magnesium alloy hydrogen supply system, characterized in that, Includes welding lifting mechanism, welding table, limit plate and positioning device; The welding table is fixed to the top of the welding lifting mechanism, and the limiting plate is movably set on the top of the welding table for positioning the columns of the frame around the magnesium alloy hydrogen supply system. The positioning device includes a slider, a locking structure, and a graduated positioning plate; The slider is slidably connected to the limiting plate, the locking structure is connected to the slider for positioning the slider, the scale positioning plate is connected to the slider and is used to position the crossbeams of the surrounding frame of the magnesium alloy hydrogen supply system frame.

2. A welding workbench for the perimeter frame of a magnesium alloy hydrogen supply system according to claim 1, characterized in that, The welding lifting mechanism includes a base, a scissor-type lifting mechanism, and a hydraulic drive device; The scissor lift mechanism is mounted on the base and connected to the hydraulic drive device, which controls the lifting state of the scissor lift mechanism. The welding platform is located on the top of the scissor lift mechanism.

3. A welding workbench for the perimeter frame of a magnesium alloy hydrogen supply system according to claim 1, characterized in that, The end of the limiting plate is provided with a positioning plate, which is set at a right angle to the limiting plate. The positioning plate is used to position the end of the column.

4. A welding workbench for the perimeter frame of a magnesium alloy hydrogen supply system according to claim 3, characterized in that, The welding table surface is provided with multiple connection holes, which are arranged in a row. The connection holes are fixed to the limiting plate by locking pins.

5. A welding workbench for the perimeter frame of a magnesium alloy hydrogen supply system according to claim 1, characterized in that, The top of the limiting plate is provided with a sliding groove, the slider is placed in the sliding groove, the top of the slider is provided with a handle, the upper end of the handle extends out of the sliding groove, and a locking structure is installed on the handle. The locking structure is used to apply a pulling force to the slider so that the slider and the sliding groove are interlocked.

6. A welding workbench for the perimeter frame of a magnesium alloy hydrogen supply system according to claim 5, characterized in that, The locking structure includes a locking device and an upper pressure block; The locking device and the upper pressure block are sleeved on the handle, with the upper pressure block located on the top surface of the limiting plate. The locking device and the handle are connected by threads.

7. A welding workbench for the perimeter frame of a magnesium alloy hydrogen supply system according to claim 1, characterized in that, A scale is provided on the top of the limiting plate.

8. A welding workbench for the perimeter frame of a magnesium alloy hydrogen supply system according to claim 1, characterized in that, The scale positioning plate is rotatably connected to the locking structure, and the scale positioning plate is located on top of the limiting plate, with the scale positioning plate and the limiting plate being set perpendicularly.

9. A welding workbench for the perimeter frame of a magnesium alloy hydrogen supply system according to claim 1, characterized in that, The top of the welding table is equipped with multiple clamps for fixing the various components of the frame surrounding the magnesium alloy hydrogen supply system.

10. A welding workbench for the perimeter frame of a magnesium alloy hydrogen supply system according to claim 1, characterized in that, There are two limiting plates, which are arranged in parallel and spaced apart.

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